Patents by Inventor Lloyd D. Martin

Lloyd D. Martin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12222031
    Abstract: A lubrication mechanism is provided for a transmission unit having a balance piston. The lubrication mechanism is movable between a closed position when a clutch assembly is disengaged which prevents cooling flow of lubrication to a clutch pack of the clutch assembly, and an open position when the clutch assembly is engaged which provides for a cooling flow of lubrication to the clutch pack. In both positions, lubrication is supplied to a balance piston cavity between the clutch assembly and the balance piston.
    Type: Grant
    Filed: January 24, 2023
    Date of Patent: February 11, 2025
    Assignee: DEERE & COMPANY
    Inventors: Randall L. Long, Kyle K. McKinzie, Lloyd D. Martin
  • Patent number: 12115858
    Abstract: A transmission assembly for a work vehicle includes a housing that accommodates first and second transmission shafts, a gear arrangement that provides a selective gear reduction for transmission of power between the first and second transmission shafts, and a quill structure secured to the housing that supports the first transmission shaft. The quill structure is couplable to the housing in a first orientation and a second orientation to vary a vertical spacing between the first and second transmission shafts. A bearing bore in the quill structure is formed at a vertically offset location of the quill structure and receives the first transmission shaft. The vertical spacing between the first transmission shaft and the second transmission shaft may be set at a first vertical distance or at a second vertical distance based on the quill structure being coupled to the housing in the first orientation or in the second orientation, respectively.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: October 15, 2024
    Assignee: DEERE & COMPANY
    Inventors: Randall L. Long, Lloyd D. Martin
  • Publication number: 20240247715
    Abstract: A lubrication mechanism is provided for a transmission unit having a balance piston. The lubrication mechanism is movable between a closed position when a clutch assembly is disengaged which prevents cooling flow of lubrication to a clutch pack of the clutch assembly, and an open position when the clutch assembly is engaged which provides for a cooling flow of lubrication to the clutch pack. In both positions, lubrication is supplied to a balance piston cavity between the clutch assembly and the balance piston.
    Type: Application
    Filed: January 24, 2023
    Publication date: July 25, 2024
    Inventors: Randall L. Long, Kyle K. McKinzie, Lloyd D. Martin
  • Publication number: 20240010064
    Abstract: A transmission assembly for a work vehicle includes a housing that accommodates first and second transmission shafts, a gear arrangement that provides a selective gear reduction for transmission of power between the first and second transmission shafts, and a quill structure secured to the housing that supports the first transmission shaft. The quill structure is couplable to the housing in a first orientation and a second orientation to vary a vertical spacing between the first and second transmission shafts. A bearing bore in the quill structure is formed at a vertically offset location of the quill structure and receives the first transmission shaft. The vertical spacing between the first transmission shaft and the second transmission shaft may be set at a first vertical distance or at a second vertical distance based on the quill structure being coupled to the housing in the first orientation or in the second orientation, respectively.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 11, 2024
    Inventors: Randall L. Long, Lloyd D. Martin